Stingray issue, need help

[mscamp02]

Currently I have four rays in my tank all on massivore. All the rays eat pellets aggresively however my oldest one, about 1.5 years, has been losing weight and not putting on size. He still looks healthy just not fat and def small for his age, about 7 to 8 in disk. My two mantillas have pissed him in size at half the age, and my leo will pass him soon at even a younger age.

Anyways I've noticed recently that my motoro and only my motoro will poop dust for lack of a better way to describe it, a short while after eating so I'm thinking he might have some sort of parasite causing the food to just sgoot through him.

Any ideas?

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[FishDog]

My male marble is the smaller of the rays in my tank at 9". He eats aggressively but you never see his back bulge and he looks streamline. I would not say he is skinny but would not say fat either. I have had him for over a year and he looks the same. He is however very active. Is your motoro more active than the others? Generally you only see a parasite issue from a new addition or from a ray being stressed. Is he picked on, are hip bones showing?

 

[mscamp02]

Very active, not stressed, been a while since I introduced a new tankmate. He's always been streamline but now I can tell that his tail has is not as thick as it once was.

Main concern is the food seeming to rush through him and come out as a dusty cloud shortly after eating

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[DIDYSIS]

Are you feeding any other types of food at all? I have one ray that just for better words does not eat much food at all. He is not sick just does not eat allot of food, my concern would be that you said he is loosing weight. Is it because your not.throwing enough food into the tank so he has a chance to get some? And the others are huge pigs? I know you said they are eating aggressivly. How much food is he really eating? My one female mantilla does not eat pellets currently and when she goes a couple days with out food because I am just feeding pellets trying to convert her and no shrimp she then the next time will poop white stringy poop. Also looking more like sperm.

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[mscamp02]

He usually takes about 4 to 8 pellets at a time, shrimp one a week because I'm still trying to convert other fish over to pellets.

He's aggresive enough and gets whatever he wants, I open my four tops and spread food across the 8 feet so they don't pile up on each other.

I wouldnt have posted this thread just yet but I'll be gone for a year in a few weeks and the wife will be taking care of them so I want to make sure everything is perfect.

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